mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-11-01 00:48:50 +00:00
44 lines
1.3 KiB
C
44 lines
1.3 KiB
C
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{
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"map element value is preserved across register spilling",
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.insns = {
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BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
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BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
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BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0),
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BPF_LD_MAP_FD(BPF_REG_1, 0),
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BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem),
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BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 6),
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BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, 42),
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BPF_MOV64_REG(BPF_REG_1, BPF_REG_10),
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BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -184),
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BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_0, 0),
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BPF_LDX_MEM(BPF_DW, BPF_REG_3, BPF_REG_1, 0),
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BPF_ST_MEM(BPF_DW, BPF_REG_3, 0, 42),
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BPF_EXIT_INSN(),
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},
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.fixup_map_hash_48b = { 3 },
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.errstr_unpriv = "R0 leaks addr",
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.result = ACCEPT,
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.result_unpriv = REJECT,
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},
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{
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"map element value or null is marked on register spilling",
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.insns = {
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BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
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BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
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BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0),
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BPF_LD_MAP_FD(BPF_REG_1, 0),
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BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem),
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BPF_MOV64_REG(BPF_REG_1, BPF_REG_10),
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BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -152),
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BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_0, 0),
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BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 2),
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BPF_LDX_MEM(BPF_DW, BPF_REG_3, BPF_REG_1, 0),
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BPF_ST_MEM(BPF_DW, BPF_REG_3, 0, 42),
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BPF_EXIT_INSN(),
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},
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.fixup_map_hash_48b = { 3 },
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.errstr_unpriv = "R0 leaks addr",
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.result = ACCEPT,
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.result_unpriv = REJECT,
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},
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